Summary in english:
This article shows the diversity of Julio de Urquijo’s Basque cultural activity: 1. Before the creation of the RIEV; 2. Before the setting up of Eusko Ikaskuntza and Euskaltzaindia; 3. In the period between the wars. 4. Up to his death. Diversity from two points of view: 1. with respect to themes such as linguistics, paremiology, onomastics, folklore, the origin of the Basque language, archaeology, heraldry, etymology, music, literature, bibliography, commerce, etc. 2. with respect to ideological diversity, since he had excellent relations with many politicians and intellectuals with different opinions although he was a traditionalist.